Update app.py

app.py

@@ -218,7 +218,6 @@ if st.session_state.screen == 2:
         im_bgr = st.session_state.results[st.session_state.image_counter].plot()  # BGR-order numpy array
         im_rgb = Image.fromarray(im_bgr[..., ::-1])  # RGB-order PIL image
         st.image(im_rgb)
-        st.session_state.confidence = st.slider(label="Change Model Confidence Level and Rerun", min_value=0.01, max_value=0.99, value=st.session_state.confidence, step=0.01)
-    
-    
-    
+        if 'results' in st.session_state or st.session_state.results != None:
+            st.session_state.confidence = st.slider(label="Change Model Confidence Level and Rerun", min_value=0.01, max_value=0.99, value=st.session_state.confidence, step=0.01)
+            st.session_state.results = None